baber/WOPTO huggingface dataset:
Patent GB-1253825-A (GB)
Title: N-(phenylalkyl)-acylamides and their preparation
Inventor: LINDBERG ULF HENRIK ANDERS
IPC: C07D211/60
Filed: 1968-07-16
Abstract: 1,253,825. Local anaesthetics. ASTRA A.B. 8 July, 1969 [16 July, 1968], No. 33867/68. Heading A5B. [Also in Division C2] Pharmaceutical compositions suitable for parenteral or topical administration as local anaesthetics, contain as active ingredients novel N-(phenylalkyl) amides of the formula I wherein R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, are C 1-3  alkyl; R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP>, which may be the same or different are, H, halogen, C 1-3  alkyl or C 1-3  alkoxy; m and n, which may be the same or different, are 0 or 1, at least one of m and n being 0; R<SP>8</SP> and R<SP>9</SP>, which may be the same or different, are H or C 1-3  alkyl; and Am is pyrrolidino, piperidino, morpholino, or mono- or di-(C 1-4  alkyl)- amino or when R<SP>8</SP> is H, Am together with R<SP>9</SP> form a nitrogen containing heterocyclic ring which may be substituted by C  1-4  alkyl, or therapeutically acceptable acid addition salts thereof, and, if desired, vasoconstrictors such as adrenaline, or noradrenaline, and therapeutically acceptable carriers or diluents. The composition possess local anethetic properties.
Patent GB-1067427-A (GB)
Title: Circuit arrangement for the parallel addition and subtraction of decimal digits
Inventor: KASPER WALTER
IPC: G06F7/494
Filed: 1964-08-19
Abstract: 1,067,427. Electric calculating apparatus. BUROMASCHINENWERK SOMMERDA. VEB. Aug. 19, 1964, No. 33885/64. Heading G4A. In a parallel arrangement for the addition or subtraction of binary-coded decimal numbers, a first number is added to or subtracted from a second number contained in two-state stages A1-A4 of a register and the carries generated through " and " gates K6, K8, K10, K12 or K7, K9, K11, K13 to temporary carry storage two-state stages E2-E4 are transferred to the next stages of the register through " and " gates K2-K4. A decimal correction device KR controlled through "and" gate K15 and " or " gate D1 adds or subtracts through " and " gate K5 a " 6 " through carry stage E2 and accumulator stage A3 and simultaneously switches stage E for a carry to the next tetrad. The numbers are read out of and into a storage matrix and the signs are first read into stage A1 which triggers stage M previously set to addition or subtraction in order to control the ADD or SUB lines. The presence of a carry in E beyond the last decimal place indicates a negative number and recomplementing is achieved by a control trigger REK switched on by the control signal from a counter Z which recounts through the result AC to form O-AC whilst M is blocked.
Patent GB-634270-A (GB)
Title: Slot insulation for the wound stators of electric motors
IPC: H02K3/34
Filed: 1947-12-23
Abstract: 634,270. Insulation for dynamo-electric machines. MICAFIL AKT.-GES. WERKE FUR ELECTRO-ISOLATION UND WICKLEREIEINRICHTUNGEN. Dec. 23, 1947, No. 33937. Convention date, Jan. 2. [Class 35] The separate coils in each slot of a stator are separated by insulation which is of such form and so located that it secures the first wound coil while the next is being wound in position. As shown in Fig. 1, the lower coil 4 is held in position while the coil 6 is wound in position, by a thin strip 5 and a U-shaped insulating slot liner 2, 2 having flanged edges 3. In a modification, these flanges may be replaced by wedge-shaped portions glued to the side members 2. In Fig. 3 the ends 11 of an outer slot liner are turned over to secure the inner liner 10 which holds the lower coil 4. In a modification, the slot opening may be formed with hook-shaped edges for holding the slot liner.
Patent GB-427082-A (GB)
Title: Improvements in or relating to water tube steam boilers
IPC: F22B21/08
Filed: 1934-11-26
Abstract: 427,082. Steam-boiler steam and water drums. YARROW, SIR H. E., c /o Yarrow & Co., Scotstoun, Glasgow. Nov. 26, 1934, No. 33967. [Class 123 (ii)] Water - tube boilers have a steam and water drum comprising a number of superposed drums opening into one another, the adjacent drums being rigidly connected together by a longitudinal web. In the form shown an upper and a lower drum are connected by a beam c extending longitudinally between them and tubes d open into the lower part of the upper and the upper part of the lower drum. The complete assembly is supported by fixed brackets e at both ends of the lower drum. The water level may be maintained in the upper drum.
Patent GB-1391141-A (GB)
Title: Automatic squelche tail eliminator for tone coded squelch systems
IPC: H03G3/00
Filed: 1973-07-17
Abstract: 1391141 Radio signalling RCA CORPORATION 17 July 1973 [21 July 1972] 33974/73 Heading H4L A radio receiver which is muted in response to receiver noise in the absence of a carrier wave and also in response to the absence of the correct calling tone, is provided with means for eliminating noise heard at the loudspeaker (squelch tail noise), due to the delay in response of the muting circuit when the carrier is removed. As described, the receiver is responsive to a sub-audible tone which is transmitted with the speech signal. On completion of the message the remote transmitter continues to transmit carrier only or the sub-audible tone in reversed phase for approximately 150 milliseconds, in known manner. The output of the discriminator 27 is supplied via a filter 31 blocking said tone and a gated amplifier 33 to the loudspeaker 35. When there is no carrier the resulting noise is amplified at 36, rectified at 37 and supplied via OR gate 39 to cut-off the amplifier 33. The subaudible tone in the output of discriminator 27 is selected at 41' and supplied to a NAND gate 43 together with the output of the discriminator amplified at 40. The resulting logic 0 is supplied to AND gate 45. In normal operation switch 63 provides a logic 1 input to AND gate 45 via OR gate 51 which input is also supplied to a squelch control gate 49 to close the switch 49a. However, since there is no output from gate 45 the receiver is unmuted. When the message ends the continuation of the carrier for a short period holds the receiver unmuted to prevent noise appearing in the output. NAND gate 43 now produces logic 1 at its output and the resulting output from AND gate 45 mutes the receiver. When it is required to transmit a message via the associated transmitter it is necessary for the operator to know if other traffic is present. For this reason switch 63 is opened temporarily to disable the tone operated muting circuit. When communication is established the tone detected at 41 provides logic 0 at the output of NAND gate 43. The output of gate 43 is supplied to a monostable 55 which is triggered by logic 1 at its input so that it remains in the state wherein logic 0 is coupled via OR gate 51 to the control gate 49, causing switch 49a to open. When the received message ends, logic 1 appears at the output of gate 43 and monostable 55 is triggered to provide a pulse of, for example, 150 milliseconds, which is supplied via OR gate 51 to AND gate 45 and to the control gate 49 to close the switch 49a. Thus the receiver will be muted for the duration of the pulse from the monostable 55 and thereafter will be muted by the noise controlled system 36, 37.
Patent GB-375200-A (GB)
Title: An improved steam or water-jacketed heating cabinet
IPC: F28D1/02
Filed: 1931-12-08
Abstract: 375,200. Heating air. PETERSEN, J., 23, Dannebrogsgade, Aalborg, Denmark. Dec. 8, 1931, No. 34040. [Class 64 (i).] An air heating cabinet for central heating of rooms has double side walls, rear wall, and top and bottom in which steam or other heating medium entering at 2 and leaving at 3 circulates. Air entersnearthe bottom of the cabinet through the door by holes 7 covered with filter cloth and leaves by a regulable damper 13. A box 6 carried on the inside of the door fits against a front opening 11 of an inverted perforated drawer 10 placed above the bottom. The box has internal partitions 8 to arrest dust causing the air to flow in a zig-zag path into the cabinet, which has perforated shelves 14.
Patent GB-1201089-A (GB)
Title: Corrosion inhibitor for hydraulic fluids
Inventor: NANKEE ROBERT JAMES
IPC: C07F5/04
Filed: 1967-07-25
Abstract: 1,201,089. Pentaborate-alkylene glycol condensates. DOW CHEMICAL CO. 25 July, 1967, No. 34063/67. Heading C2C. [Also in Divisions C3 and C5] Compounds which are useful as corrosioninhibitors in hydraulic fluids comprise condensates of a C 2-6  alkylene glycol and an alkali or alkaline earth metal pentaborate, which condensates contain at least 20 glycol units per mole of pentaborate. Up to 60 moles of glycol may be used, the excess providing an inhibitor concentrate. The preparation is preferably effected at reduced pressure to facilitate removal of water. The condensates may also be prepared in situ in an hydraulic fluid, e.g. a glycol or polyglycol or derivative thereof or castor oil.
Patent GB-341546-A (GB)
IPC: B60G5/053
Abstract: 341,546. Motor vehicle driving gear. HENDERSON, L. D., 13, Rue Dinocrate, Mazarita, Alexandria, Egypt. Oct. 19, 1929, Nos. 31822 and 34756. [Classes 79 (ii) and 79 (iii).] In a method of converting a standard fourwheeled vehicle, such as a 30-cwt. Ford truck, into a six-wheeled vehicle by the addition of a rear frame extension 5 carrying a supplementary axle 14, the latter takes part of the drive from the standard four-wheel axle 11 in the following manner. The main portion of the differential gear housing of the axle 11 is replaced by a portion 16 having a rear branch 17 in which is mounted an additional bevel pinion connecting the axle 11 to a universal coupling at 20 and thence through a shaft enclosed in a torque tube 21 to a differential gear mounted in a housing 23, 24 on the axle 14. The differential 23, 24 is inverted as shown, in order to cause the shafts 11, 14 to be rotated in the same direction.
Patent GB-798466-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: MACRAE WILLIAM
IPC: G21C7/11
Filed: 1955-11-29
Abstract: 798,466. Nuclear reactors. PARSONS & CO., Ltd., C. A. Dec. 21, 1956 [Nov. 29, 1955], No. 34216/55. Class 39(4). Absorber rods for controlling the neutron flux distribution and for containing fertile material inside a nuclear reactor are in articulated or link form. The links 7, 9, 10 are connected by universal joints 9a and each link comprises a sheath 14 and liner 13 and is filled with fertile material such as thorium. Radial arms 12 and a cap 8 on the top link 7 hold the rod in place and provide for lifting, a conical portion 10a guides the lowest link 10, and fins 11 centre the rod in its channel.
Patent GB-480135-A (GB)
Title: Improvements in or relating to averaging instruments for continuously averaging a variable quantity measured by a meter
IPC: G01R11/56
Filed: 1936-12-14
Abstract: 480,135. Supply meters. HAIN, F. B. L. Dec. 14, 1936, No. 34252. [Class 37] [Also in Group XIX] In means for indicating or recording the average rate of supply wherein a meter produces, for example, an electric impulse for each measured unit, a continuous indication is given of the quantity measured by the meter during an Immediately preceding interval of predetermined extent. A motor-driven disc 130 carries a number of slidable pins 134 adapted to be displaced inwardly by the meteroperated hammer 143. The number displaced in the predetermined interval corresponds to the rate of supply of the meter during that interval, and is shown by a pointer 5 which by means of a differential gear is moved in one direction by the pins engaging star-wheel 136 and in the opposite direction by the pins engaging star-wheel 135. A cam 144 re-sets the pins. According to the invention, the hammer 143 is guided by teeth 137 on the disc so as to strike without delay a pin 134, the hammer arm being mounted so as to be free to move laterally about an axis 141. In a moclification, Fig. 7, a separate toothed wheel 147 is used to guide the hammer 143 on to the pins 134. The device may be used to break a circuit or to switch a meter from one tariff to another when the average falls below a certain value.
Patent GB-1346237-A (GB)
Title: Motion picture projectors
IPC: G03B21/50
Filed: 1971-07-21
Abstract: 1346237 Cine projector A B DICK CO 21 July 1971 [31 July 1970] 34270/71 Heading G2E A cine projector able to project for a prolonged period a particular film frame includes a timing device which when activated stops the projector with the shutter open so that subsequent adjustment of the shutter for still projection is unnecessary. As shown in Fig. 10 a twin apertured disc shutter 23 is connected to a timing wheel 48, having a substantially spiral path, and a motor (not shown), so that the shutter 23 and wheel 48 are driven simultaneously. An arm 55 pivoting at 56 carries a follower 58 which may engage the path when the arm 55 is in its lower position (dotted lines in Fig. 16). To activate the still projection facility when the projector is operating, solenoid 92 is activated by a signal carried by the film or by a manual input. The solenoid 92 pivots the arm 89 about 88 so that its foot 90 is removed from beneath sleeve 63 which is attached to the arm 55. The spring 64 therefore lowers the arm 55 so that the follower 58 can engage the inner end of the spiral path. The movement of the arm 89 simultaneously disconnects the audio circuit controlled by switch 97 and de-energizes the motor and dims the light source by means of switches 98. After being de-energised the motor coasts so that the shutter 23 and wheel 48 still rotate. The follower 58 thus drops into the track 52 and travels outwards and thus pivots the arm 55 so that its end 62 brushes past the pin 75 on the plate 72 which is thereby pivoted against the action of spring 73. After the follower 58 reaches the outermost point 52b of the track 52 it is moved inwards by the section 52d so that it again abuts the pin 75 but from the opposite side. The arm 78 is now moved clockwise about 79 so that tooth 76 and surface 83 can locate tooth 85 on the shutter 23 between them and thereby lock the shutter in a predetermined fully open position for still projection. To restart, film feed button 114 is pressed which pivots arm 112 about pin 115. This causes surface 118c of the pawl 118 to abut surface 127c and thereby slide and pivot the arm 127 about pin 125 and so tension spring 128. Simultaneously surface 127a abuts surface 123b of lever 123 which is prevented from pivoting about pin 122 by catch 132c. Further movement of the button 114 causes surface 127a to pivot member 132. The lever 123 is no longer restrained and the member 127 transfers the energy stored in the spring 128 to the lever 123 so that it pivots about pin 122. This causes its foot 123e to lift the sleeve 63 so that the foot 90 of the arm 89 can return beneath the sleeve 63 and thereby disengage the follower 58 and track 52 and re-energise the motor. The movement of the member 132 also pivots the screw 105 so that its end 105a no longer holds the arm 55 in its lower position.
Patent GB-1488967-A (GB)
Title: Process for preparing hydrazine hydrate
IPC: C07C49/04
Filed: 1975-08-18
Abstract: 1488967 Hydrazine hydrate OTSUKA KAGAKU YAKUHIN KK 18 Aug 1975 34310/75 Heading ClA Hydrazine hydrate is made by hydrolysing ketazine or hydrazone of formula wherein R<SP>1</SP> and R<SP>2</SP> are the same or different and are 1-3 C alkyl, the total number of C atoms in R<SP>1</SP> and R<SP>2</SP> being 4 or less; R<SP>3</SP> and R<SP>4</SP> are the same or different alkyl groups of 1-3 C atoms, the total number of C atoms of R<SP>3</SP> and R<SP>4</SP> being 4 or less by charging an aqueous or ketonic solution of the ketazine or hydrazone 1 into a fractional distillation column for removal of free ketone which is separated as vapour at the top of the column, passing the residual solution to at least two successive hydrolysis reactors 6, 11, 16 to hydrolyse the solution, each of said reactors having a contact column 6<SP>1</SP>, 11<SP>1</SP>, 16<SP>1</SP>, on the top thereof, passing the residual solution from the final reactor to the upper portion of a fractional distillation column 21 from which hydrazine hydrate 23 is recovered as an end product; passing vapour from each of the vessels to the preceding vessel to bring the vapour into countercurrent contact with a portion of the reaction solution from the same reactor flushed into the upper part of the column and controlling the process so that the solution remaining in each of the hydrolysis reactors 6, 11, 16 is not smaller than the amount of aqueous solution of hydrazine hydrate recovered per hour and is preferably 2-10 times that volume, and the mole ratio total ketone : total hydrazine K is 2À0-1À2 wherein the "totals" are the sum of ketone/hydrazine in equilibrium system and formed by complete hydrolysis of ketazine or hydrazone. The number of hydrolysis reactors is preferably 2-4. The amount of reaction solution flushed into the contact column from the reactor is preferably such that the linear velocity of evaporation is not higher than 10 cm./c.c. The system is preferably operated at atmospheric pressures but pressures of up to 4 kg./cm.<SP>2</SP> may be employed. The temperature of the solution recovered from the column 2 is typically 56À5-102 C. and that in the hydrazine hydrate recovery column is typically 96-115 C., the hydrolysis in the reactors being conducted at temperatures between these values and preferably being raised progressively from reactor to reactor.
Patent GB-622499-A (GB)
Title: Improvements in or relating to apparatus for playing table cricket
IPC: A63F7/06
Filed: 1946-11-20
Abstract: 622,499. Table games. LACEY, J. L., and LACEY, I. E. M. Nov. 20, 1946, No. 34340. Convention date, Jan. 29. [Class 132 (ii)]  A board 2 formed from separable sections and having a boundary fence has a pitch marked thereon with a wicket at one end near which is a straight slot 16 in which slides a batsman 7 on a base 17. The batsman comprises an upright support 7 moved in the slot 16 by a hand-controlled linkage 18, 19, 23 and carrying a pivoted bat 8 having a series of inclined faces and operated by hand through a cable connection 13. At the other end of the pitch a bowler 7a is mounted on a base 17a adapted to be manually rotated by lever 37. A ball 6 is projected by an arm 27 pivoted to the bowler 7a and operated-manually by levers 29, 32, 33, 34. Cups 40 act as fielders by catching the ball 6 and may be fitted with a swinging curtain 44 to trap the ball in flight. Pockets in the board 2 may be provided to trap the ball 6. The batting and bowling figures may be mounted on detachable plates. The Specification as open to inspection under Sect. 91 describes also a form in which the batsman can be turned and the slot 16 is of arcuate form. This subject-matter does not appear in the Specification as accepted.
Patent GB-1081789-A (GB)
Title: Transesterification process
IPC: C08K5/134
Filed: 1966-08-01
Abstract: The invention relates to a process for the preparation of compounds of the general formula <FORM:1081789/C2/1> which comprises treating at least a molar equivalent of an ester of the formula <FORM:1081789/C2/2> with an alkanol of the formula [HO]n-R in, e.g., pentaerythritol, ethylene glycol, neopentyl glycol or 1,1,1-trimethylolpropane, in the presence of an effective amount of a lower, e.g. sodium or lithium, alkoxide of an alkaline metal at a temperature from 80 DEG  to 200 DEG  C. at a pressure at least as low as the vapour pressure at the reaction temperature of the lower alkanol formed during the reaction, where n is 1 to 6 and R is a non-hydroxylated radical having a valence equal to n and being a straight or branch chain aliphatic hydrocarbon containing from 1 to 30 carbon atoms, cycloaliphatic hydrocarbons containing from about 5 to about 7 carbon atoms and straight and branch chain aliphatic mercaptohydrocarbons containing from 4 to 40 carbon atoms and from 1 to 3 non-terminal sulphide links, the group R in each case containing a number of carbon atoms at least equal to the valence n.  In an example methyl 3-[3,5-di-t.-butyl-4-hydroxyphenyl]propionate and pentaerythritol were heated together under a nitrogen atmosphere and an initial portion of sodium methoxide catalyst was added, and as the reaction progressed, five equal portions of catalyst were added during the transesterification reaction, to produce tetra-[3-(3,5-di-t.-butyl-4-hydroxyphenyl)propionyloxymethyl] -methane.
Patent GB-606206-A (GB)
Title: Improvements in or relating to photogravure printing plates and method of making thesame
IPC: G03F5/20
Filed: 1945-12-19
Abstract: 606,206. Photogravure printing plates. NEWS SYNDICATE CO., Inc. Dec. 19, 1945, No. 34387. Convention date, Dec. 30, 1944. Drawings to Specification. [Class 98 (ii)]. A photogravure printing plate is formed by first exposing a light-sensitive material, e.g. a sensitised carbon tissue, through a fullrange half-tone positive transparency and then through a uniform half-tone dot formation positive transparency of the same screen size and then using the carbon tissue as a resist, through which a metal plate is etched in the usual manner to form cavities which vary in area. If it is desired to provide cavities which also vary in depth, the carbon tissue is also exposed through a continuous tone-positive transparency. Light-sensitive material other than carbon tissue may be used, in which case the combined print is printed on another sensitised material which is capable of direct conversion into a resist. Specification 494,157 is referred to.
Patent GB-623769-A (GB)
Title: Improvements in or relating to dispersing magazines or boxes for pirns or like yarn packages
IPC: D03D45/20
Filed: 1946-11-20
Abstract: 623,769. Bobbin &c. magazines. BRITISH CELANESE, Ltd. Nov. 20, 1946, No. 34456. Convention date, Nov. 20, 1945. [Classes 120 (iii) and 142 (ii)] [Also in Group XVII] A. magazine for storing and delivering pirns and like yarn packages comprises a normally closed box 1 with vertically spaced shelves 22 ... 25 sloping alternately in opposite directions so as to form a gravity feed towards the sloping base 5 and a hopper 27, where the lowermost pirn is detained for removal by the operative. As shown, the box has a transparent door 6, through which the passage as a whole may be viewed, and a hinged lid 14 that has a counterweight 18 for holding it in the open, position against a stop 19 on the back wall. The box may be hung on to a loom frame or other support by means of a bracket 28. The shelves may be wide enough to accommodate two or more rows of pirns.